Electronic thermometer is a type of temperature measuring device, it is designed to measure temperature using electronic thermal sensors. Electronic thermometers are more accurate and easier to use than other traditional thermometers such as alcohol thermometers, glass thermometers, etc. This device is commonly used in industries, medical, food, etc. Product economics, science and engineering for measuring the temperature of liquids, gases, foods and environmental conditions. Electronic thermometers have many advantages, such as accurate measurement, high resolution, quick reading of results and could save data. They can also program it to warn when the temperature exceeds a preset limit. However, they also have disadvantages, such as requiring batteries to operate, limited temperature tolerance, and inability to use in the environment.